Frost Advisory
FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
Take steps now to protect tender plants from the cold.
Knox County, Illinois: tornado and severe weather warnings
A frost advisory is in effect for Knox County as of 4:50 PM CDT.
Open the live map on Knox County Get a message when a warning reaches your address
The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Knox County. Tap your own street on it for times that apply to you.
The last 12 months in Knox County
- 7 tornado warnings
- 26 severe thunderstorm warnings
- 6 flash flood warnings
- 8 tornado watches
- 7 severe thunderstorm watches
The most recent tornado warning that included Knox County was issued Aug 9, 2026 by the Weather Service office in Central Illinois.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Aug 19, 2026 | 5:43 PM CDT | Flash flood warning | ILX | text |
| Aug 14, 2026 | 11:56 PM CDT | Flash flood warning | ILX | text |
| Aug 14, 2026 | 4:07 AM CDT | Flash flood warning | ILX | text |
| Aug 13, 2026 | 11:21 PM CDT | Flash flood warning | ILX | text |
| Aug 12, 2026 | 7:44 AM CDT | Severe thunderstorm warning | ILX | text |
| Aug 9, 2026 | 9:57 PM CDT | Tornado warning | ILX | text |
| Jul 20, 2026 | 12:37 PM CDT | Severe thunderstorm warning | ILX | text |
| Jun 17, 2026 | 8:14 AM CDT | Severe thunderstorm warning | ILX | text |
| Jun 11, 2026 | 5:12 PM CDT | Severe thunderstorm warning | ILX | text |
| Jun 11, 2026 | 11:47 AM CDT | Severe thunderstorm warning | ILX | text |
| Jun 10, 2026 | 9:14 PM CDT | Flash flood warning | ILX | text |
| Jun 10, 2026 | 8:53 PM CDT | Severe thunderstorm warning | ILX | text |
A warning counts here if the Weather Service listed Knox County in it, even if the warned area covered only part of the county.
Nearby
- Warren County, IL
- Stark County, IL
- Peoria County, IL
- Henry County, IL
- Fulton County, IL
- Mercer County, IL
- Henderson County, IL
- McDonough County, IL
- All of Illinois
What the alerts mean
Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.